X-ray production is the opposite of:
- Compton scattering
- Photoelectric effect
- Electromagnetic radiation
- Radioactive decay
What is the momentum of a photon with wavelength and Planck constant (h)?
- P= 2h
- P= 0
- P= h/λ
- P=∞
Which of the following is the lightest particle?
- Electron
- Photon
- Proton
- Neutron
The mass of photon is equall to
- Equal to the mass of a proton
- Varies depending on its energy
- Zero
- Equal to the mass of an electron
If electrons are passed through an electric and magnetic field undeflected, the correct equation is:
- F = q(E x v)
- F = q(E + vB)
- F = q(E / v)
- F = q(E – vB)
In 
, the number of (E) electron , (P) protons and (N) neutrons are
- E= 90 , P= 88, N= 350
- E= 90 , P= 90, N= 90
- E= 88 , P= 90, N= 260
- E= 88 , P= 90, N= 90
A dynamo converts mechanical energy to:
- Potential energy
- Kinetic energy
- Electrical energy
- Thermal energy
The emf produced be generator depends upon
- Number of loops
- Resistance of the circuit
- Length of the wire
- Volt
If the Cp value is 220 units, what could be a possible value for the Cv value?
- 300 units
- 220 units
- 11.7 units
- 250 units
The point where amplitude is maximum called
- Antinode
- Nodal point
- Equilibrium point
- Null point
